when引导的时间状语从句.ppt

when 引导的时间状语从句I will come here tomorrow.I will come here at 3:00.I will come here in the morning.I will come here when you are not busy.时间状语若为时间状语若为句子句子，则该句称为时间状语从句。，则该句称为时间状语从句。时间状语从句就是在复合句中表示主句动作发生时间的状语从句。when引导时间状语从句时，意思是“当的时候”。Ill call you when I get there.我到那里时就给你打电话。When I got home,my wife was cooking dinner.我到家时，我妻子在做晚饭。The boy will be a writer when he grows up.这个男孩长大时将成为一名作家。Attention1，主句从句时态要一致主句从句时态要一致 主句过去主句过去 从句过去从句过去 When he was 7,he could swim.主将从现主将从现 主祈从现主祈从现 主情从现主情从现When he comes,we will start the meeting.When you are ill,you must see a doctor.Be careful when you cross the street(大街).2,主句从句位置问题主句从句位置问题when从句放主句前后都可，从句防主句之前需逗号隔开。1.Well start out _ the teacher comes.A.when B.while C.though D.but 2.-Please remember to say goodbye to Mr.Smith when you _ tomorrow.-Sure,I will.A.leave B.will leave C.left D.have left